Title :
Pulse shaping using the discrete fourier transform for direct detection optical systems
Author :
Gaete, Oscar ; Coelho, Leonardo ; Spinnler, Bernhard ; Hanik, Norbert
Author_Institution :
Inst. for Commun. Eng., Tech. Univ. Munchen, Munich, Germany
Abstract :
Different pulse shapes are presented as alternative to traditional (N)RZ pulses in communication systems using direct detection. The pulses are efficiently generated in the frequency domain using the discrete Fourier transform. The trade-off between spectral occupancy and eye opening is discussed and performance is evaluated by means of simulations.
Keywords :
discrete Fourier transforms; frequency-domain analysis; optical modulation; optical pulse generation; optical pulse shaping; optical signal detection; subcarrier multiplexing; Nyquist pulses; communication systems; digital subcarrier multiplexing; direct detection optical systems; discrete Fourier transform; frequency-domain pulse generation; optical pulse shaping; spectral occupancy; Bandwidth; Discrete Fourier transforms; Multiplexing; Optical filters; Optical signal processing; Receivers; Shape; Hamming; Pulse shaping; direct detection; discrete Fourier transform; raised cosine; sinc;
Conference_Titel :
Transparent Optical Networks (ICTON), 2011 13th International Conference on
Conference_Location :
Stockholm
Print_ISBN :
978-1-4577-0881-7
Electronic_ISBN :
2161-2056
DOI :
10.1109/ICTON.2011.5971032
